import cadquery as cq
w0=cq.Workplane('XY',origin=(0,0,-2))
w1=cq.Workplane('XY',origin=(0,0,0))
r=w0.workplane(offset=-71/2).moveTo(-5.5,-60.5).box(79,79,71).union(w0.sketch().segment((23,98),(24,100)).segment((23,100)).close().assemble().finalize().extrude(-38)).union(w1.workplane(offset=73/2).moveTo(33,-22).cylinder(73,12))